In Pics: When Smog Canopies National Capital Delhi

The pollution level rose to dangerous levels, with 18 out of 21 active pollution monitoring stations recording "severe" air quality. (Image: ABP Live/Anurag Kumar)

Authorities on Tuesday hiked vehicle parking fees by four times in Delhi in a bid to curb worsening air quality in the capital as the high-pollution winter months kicked in. The decision was taken at a meeting of the Supreme Court-appointed Environment Pollution Prevention and Control Authority (EPCA) here to discourage people from using private vehicles as air pollution worsened further and touched more alarming proportions on Tuesday. (AFP PHOTO)

The Indian Medical Association said Delhi was witnessing a "public health emergency" and appealed to the government to stop outdoor sports and other such activities in schools to protect the health of children. (AFP PHOTO)

As a thick blanket of haze hung low over the city, visibility levels plunged, affecting flight and train operations. It permeated living rooms and even the underground metro stations in the city making it difficult to breathe, turning eyes watery and producing burning sensation. (AFP PHOTO)

Delhi's air quality was at the season's worst on Tuesday as a combined effect of smoke from stubble burning and moisture turned the city into a "gas chamber" leaving people gasping and prompting authorities to announce closure of primary schools and a four-fold hike in parking fees among a series of sweeping measures. (Image: ANI)

New Delhi: As the winter has arrvied, smog canopied the national capital of the country. (Image: ANI)